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Gentoo Linux Security Advisory GLSA 200408-18 |
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http://security.gentoo.org/ |
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Severity: Normal |
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Title: xine-lib: VCD MRL buffer overflow |
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Date: August 17, 2004 |
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Bugs: #59948 |
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ID: 200408-18 |
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Synopsis |
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======== |
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|
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xine-lib contains an exploitable buffer overflow in the VCD handling |
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code |
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Background |
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========== |
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xine-lib is a multimedia library which can be utilized to create |
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multimedia frontends. |
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|
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Affected packages |
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================= |
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|
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------------------------------------------------------------------- |
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Package / Vulnerable / Unaffected |
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------------------------------------------------------------------- |
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1 media-libs/xine-lib <= 1_rc5-r2 >= 1_rc5-r3 |
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|
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Description |
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=========== |
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|
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xine-lib contains a bug where it is possible to overflow the vcd:// |
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input source identifier management buffer through carefully crafted |
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playlists. |
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Impact |
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====== |
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|
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An attacker may construct a carefully-crafted playlist file which will |
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cause xine-lib to execute arbitrary code with the permissions of the |
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user. In order to conform with the generic naming standards of most |
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Unix-like systems, playlists can have extensions other than .asx (the |
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standard xine playlist format), and made to look like another file |
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(MP3, AVI, or MPEG for example). If an attacker crafts a playlist with |
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a valid header, they can insert a VCD playlist line that can cause a |
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buffer overflow and possible shellcode execution. |
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|
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Workaround |
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========== |
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There is no known workaround at this time. All users are encouraged to |
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upgrade to the latest available version of xine-lib. |
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Resolution |
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========== |
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All xine-lib users should upgrade to the latest version: |
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# emerge sync |
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# emerge -pv ">=media-libs/xine-lib-1_rc5-r3" |
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# emerge ">=media-libs/xine-lib-1_rc5-r3" |
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References |
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========== |
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|
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[ 1 ] Open Security Advisory |
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http://www.open-security.org/advisories/6 |
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Availability |
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============ |
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This GLSA and any updates to it are available for viewing at |
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the Gentoo Security Website: |
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http://security.gentoo.org/glsa/glsa-200408-18.xml |
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Concerns? |
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========= |
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Security is a primary focus of Gentoo Linux and ensuring the |
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confidentiality and security of our users machines is of utmost |
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importance to us. Any security concerns should be addressed to |
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security@g.o or alternatively, you may file a bug at |
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http://bugs.gentoo.org. |
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License |
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======= |
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Copyright 2004 Gentoo Foundation, Inc; referenced text |
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belongs to its owner(s). |
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The contents of this document are licensed under the |
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Creative Commons - Attribution / Share Alike license. |
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http://creativecommons.org/licenses/by-sa/1.0 |
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